Abou-Rawash, A. , Abd-Ellatieff, H. , Elsamanoudy, S. (2012). 'Recent Outbreaks of Highly Pathogenic Avian Influenza Virus in Chickens and Ducks in Egypt: Pathological Study'. World Academy of Science, Engineering and Technology, Open Science Index 65, International Journal of Bioengineering and Life Sciences, 6(5), 256 - 264.